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Time converter
From nanoseconds to centuries. 12 units, converted from one table of exact factors.
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Worth knowing. A month and a year here are averages, because neither is a fixed length. Anything that has to land on a date needs a calendar, not a multiplication.
1 minute in every other time unit
Computed by the same engine that runs the converter above, so these can never drift apart from it.
| From | Equals | Unit |
|---|---|---|
| 1 minute | 60 | second (s) |
| 1 minute | 60,000 | millisecond (ms) |
| 1 minute | 60,000,000 | microsecond (µs) |
| 1 minute | 60,000,000,000 | nanosecond (ns) |
| 1 minute | 0.016666667 | hour (h) |
| 1 minute | 0.00069444444 | day (d) |
| 1 minute | 0.000099206349 | week (wk) |
| 1 minute | 0.000022815892 | month (mo) |
| 1 minute | 0.0000019013243 | year (yr) |
| 1 minute | 1.90132e-7 | decade (decade) |
| 1 minute | 1.9013243 × 10^-8 | century (century) |
What each unit actually is
Most converters give you a number and stop. Where a figure is exact by definition we say so, and where it is an average or shifts with conditions we say that too — that is usually the thing you needed to know.
| Unit | Symbol | What it actually is |
|---|---|---|
| second | s | The SI base unit, defined by the caesium atom since 1967. |
| millisecond | ms | Exact. |
| microsecond | µs | Exact. |
| nanosecond | ns | Exact. |
| minute | min | Exact. |
| hour | h | Exact. |
| day | d | Exactly 86,400 seconds. A real solar day varies by a few milliseconds. |
| week | wk | Exact. |
| month | mo | An AVERAGE. The Gregorian year divided by twelve. No actual month is this length. |
| year | yr | The average Gregorian year, 365.2425 days. A common year is 31,536,000 s. |
| decade | decade | Ten average years. |
| century | century | One hundred average years. |